[Qemu-devel] [PATCH RFC 2/4] slirp: add helper for udp6 socket creation

[Maxim Samoylov <max7255@yandex-team.ru>]

Signed-off-by: Maxim Samoylov <max7255@yandex-team.ru>
---
 slirp/udp.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 slirp/udp.h |  2 ++
 2 files changed, 50 insertions(+)

diff --git a/slirp/udp.c b/slirp/udp.c
index e5bf065..ab24935 100644
--- a/slirp/udp.c
+++ b/slirp/udp.c
@@ -366,3 +366,51 @@ udp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 
 	return so;
 }
+
+struct socket *
+udp6_listen(Slirp *slirp, struct in6_addr haddr, u_int hport,
+            struct in6_addr laddr, u_int lport, int flags)
+{
+    struct sockaddr_in6 addr;
+    struct socket *so;
+    socklen_t addrlen = sizeof(addr);
+
+    memset(&addr, 0, sizeof(addr));
+
+    so = socreate(slirp);
+    if (!so) {
+        return NULL;
+    }
+    so->s = qemu_socket(AF_INET6, SOCK_DGRAM, 0);
+        if (so->s < 0) {
+            sofree(so);
+            return NULL;
+        }
+    so->so_expire = curtime + SO_EXPIRE;
+    insque(so, &slirp->udb);
+
+    addr.sin6_family = AF_INET6;
+    addr.sin6_addr = haddr;
+    addr.sin6_port = hport;
+
+    if (bind(so->s, (struct sockaddr *)&addr, addrlen) < 0) {
+        udp_detach(so);
+        return NULL;
+    }
+    socket_set_fast_reuse(so->s);
+
+    getsockname(so->s, (struct sockaddr *)&addr, &addrlen);
+    so->fhost.sin6 = addr;
+    sotranslate_accept(so);
+    so->so_lfamily = AF_INET6;
+    so->so_lport = lport;
+    so->so_laddr6 = laddr;
+    if (flags != SS_FACCEPTONCE) {
+        so->so_expire = 0;
+    }
+
+    so->so_state &= SS_PERSISTENT_MASK;
+    so->so_state |= SS_ISFCONNECTED | flags;
+
+    return so;
+}
diff --git a/slirp/udp.h b/slirp/udp.h
index be657cf..862c6e8 100644
--- a/slirp/udp.h
+++ b/slirp/udp.h
@@ -80,6 +80,8 @@ int udp_attach(struct socket *, unsigned short af);
 void udp_detach(struct socket *);
 struct socket * udp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
                            int);
+struct socket *udp6_listen(Slirp *slirp, struct in6_addr, u_int,
+                            struct in6_addr, u_int, int);
 int udp_output(struct socket *so, struct mbuf *m,
                 struct sockaddr_in *saddr, struct sockaddr_in *daddr,
                 int iptos);
-- 
2.7.4